Live local variables are being dropped because the begin or end labels marking
their scope are being deleted. Workaround is to widen scope to full function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31454 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/DwarfWriter.cpp b/lib/CodeGen/DwarfWriter.cpp
index 40518eb..1c33cd8 100644
--- a/lib/CodeGen/DwarfWriter.cpp
+++ b/lib/CodeGen/DwarfWriter.cpp
@@ -1862,9 +1862,10 @@
unsigned StartID = Scope->getStartLabelID();
unsigned EndID = Scope->getEndLabelID();
- // Throw out scope if block is discarded.
- if (StartID && !DebugInfo->isLabelValid(StartID)) continue;
- if (EndID && !DebugInfo->isLabelValid(EndID)) continue;
+ // Widen scope if label is discarded.
+ // FIXME - really need to find a GOOD label if a block is dead.
+ if (StartID && !DebugInfo->isLabelValid(StartID)) StartID = 0;
+ if (EndID && !DebugInfo->isLabelValid(EndID)) EndID = 0;
DIE *ScopeDie = new DIE(DW_TAG_lexical_block);